WO2017068876A1 - Bloc d'éléments d'accumulateur - Google Patents

Bloc d'éléments d'accumulateur Download PDF

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Publication number
WO2017068876A1
WO2017068876A1 PCT/JP2016/075982 JP2016075982W WO2017068876A1 WO 2017068876 A1 WO2017068876 A1 WO 2017068876A1 JP 2016075982 W JP2016075982 W JP 2016075982W WO 2017068876 A1 WO2017068876 A1 WO 2017068876A1
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WO
WIPO (PCT)
Prior art keywords
component
fixed
battery pack
lid
box
Prior art date
Application number
PCT/JP2016/075982
Other languages
English (en)
Japanese (ja)
Inventor
浩生 植田
加藤　崇行
Original Assignee
株式会社豊田自動織機
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社豊田自動織機 filed Critical 株式会社豊田自動織機
Publication of WO2017068876A1 publication Critical patent/WO2017068876A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • One aspect of the present invention relates to a battery pack.
  • Patent Literature 1 discloses a battery pack including a battery module configured to include an array of battery cells and a housing that houses the battery module.
  • a battery pack is prepared by preparing a housing composed of a main body part and a lid part that can be detached from the main body part, placing a battery module on the main body part with the lid part removed, and then attaching the lid part. Can be assembled.
  • lid parts are often attached to main body parts by fixing members such as screws or nuts.
  • fixing members such as screws or nuts.
  • the fixed portion to which the screw or nut is fixed is often provided around the opening that covers the lid part, and the space of the opening is reduced.
  • an object of one aspect of the present invention is to provide a battery pack capable of fixing a lid part that covers an opening without increasing the size of the casing.
  • a battery pack according to an aspect of the present invention is a battery pack in which a battery module composed of a plurality of battery cells is housed inside a casing, and includes a cylindrical main body part having an opening and an opening of the main body part.
  • a battery module is fixed to at least one main surface of the cover part to be covered and the flat plate-like member, and is housed in a housing formed by the main body part and the cover part and is fixed to the main body part.
  • the flat plate member has one of a male screw part and a female screw part in which a screw groove extending spirally along the opening direction of the main body part is formed. The other of the male screw part and the female screw part is fixed to the flat plate-like member by being screwed into one.
  • the fixing part for fixing the lid part to the main body part is not provided in the main body part but in the unit part. For this reason, the inconvenience that the unit component cannot be accommodated due to the fixing portion around the opening of the main body component does not occur. This eliminates the need to increase the size of the housing. Further, since the male screw portion and the female screw portion for fixing the unit component and the lid component are screwed together along the direction parallel to the opening direction (direction orthogonal to the opening surface), the male screw portion and the female screw portion The part does not jump out in the direction of increasing the physique of the housing. As a result, the lid component that covers the opening can be fixed without increasing the size of the housing.
  • one of the male screw portion and the female screw portion may be formed on a bracket fixed to a main surface to which the battery module is fixed in a flat plate member.
  • the battery pack of this configuration even if the thickness of the flat plate member is such that one of the male screw part and the female screw part cannot be formed, one of the male screw part and the female screw part is easily formed. Possible sites can be formed. Moreover, the site
  • a plurality of the brackets may be provided along a direction in which a surface of the flat plate member facing the lid part extends.
  • the lid part can be fixed to the main body part by adding the minimum necessary bracket member.
  • the bracket may extend in a direction in which a surface of the flat plate member facing the lid part extends.
  • the degree of freedom for arranging one of the male screw part and the female screw part for fixing the lid part to the unit part can be increased.
  • one of the male screw portion and the female screw portion may be formed on a surface that intersects the main surface of the flat plate member.
  • the lid part can be fixed to the unit part without adding a member such as a bracket.
  • FIG. 1 is a perspective view showing a battery pack according to the present embodiment.
  • FIG. 2 is a cross-sectional view of the battery pack of FIG. 1 as seen from the line II-II.
  • FIG. 3 is a top view of the battery pack of FIG. 1 as viewed from above with the lid member removed.
  • FIG. 4 is a perspective view showing the battery module of FIG.
  • FIG. 5A is a perspective view showing the cell holder in a state where the battery cell is held
  • FIG. 5B is a perspective view showing the cell holder in a state where the battery cell is not held.
  • FIG. 6 is a plan view seen from the Z-axis direction when the battery module of FIG. 3 is attached to the base plate.
  • FIG. 7 is an exploded perspective view showing how to assemble the battery pack of FIG.
  • FIG. 8 is a top view of the battery pack according to Modification 1 as viewed from above with the lid member removed.
  • FIG. 9 is a top view of the battery pack according to Modification 2 as viewed from above with the lid member removed.
  • FIG. 10A is a part of a top view as seen from above with the lid member of the battery pack according to Modification 3 removed, and FIG. 10B shows the battery pack according to Modification 3 as II. It is a part of a cross-sectional view seen from the line II.
  • FIGS. 11A and 11B are part of a cross-sectional view of the battery pack according to Modification 4 as viewed from the line II-II.
  • FIG. 12A and 12B are a part of a cross-sectional view of a battery pack according to another modification as seen from the line II-II.
  • FIG. 13 (A) and FIG. 13 (B) are diagrams illustrating the shape of a bracket according to a further modification.
  • the battery pack 1 includes a bottomed cylindrical box-shaped part (main body part) 2 and a lid part 6 joined so as to cover the opening 2a of the box-shaped part 2. And a subassembly (unit part) 7 to which the battery module 20 is fixed, which is accommodated in the internal space S1 of the casing 10.
  • a subassembly 7 to which the battery module 20 is fixed which is accommodated in the internal space S1 of the casing 10.
  • FIG. 1 and other drawings used to describe the present embodiment only the subassembly 7 to which the battery module 20 accommodated in the internal space S1 of the housing 10 is fixed is illustrated, and wiring, control equipment, etc. Other members are omitted.
  • the box-shaped component 2 includes a square plate-like bottom plate 4a, and a square plate-like front plate 4b, a rear plate 4c, and a pair of side plates 4d provided upright from the periphery of the bottom plate 4a.
  • the bottom plate 4a, the front plate 4b, and the rear plates 4c and 4d are thin plates having a thickness of, for example, 1.0 mm to 20 mm, and are formed into a bottomed cylindrical shape by being joined together by welding.
  • the thicknesses of the bottom plate 4a, the front plate 4b, the rear plates 4c and 4d in the present embodiment are 6.0 mm.
  • the material of the thin plate which forms the box-shaped component 2 is, for example, a steel material such as SS400.
  • the lid component 6 includes a square plate-like lid plate 6a and four square plate-like side plates 6b standing from the periphery of the lid plate 6a.
  • the cover plate 6a and the side plate 6b are thin plates having a thickness of, for example, 1.0 mm to 20 mm, as in the case of the thin plate used for the box-shaped component 2, and are formed into a bottomed cylindrical shape by being joined together by welding. ing.
  • the thickness of the cover plate 6a and the side plate 6b of the present embodiment is 6.0 mm, which is the same as the member forming the box-shaped component 2.
  • the cover plate 6a is formed with four insertion holes 6c for inserting screws (male screw portions) 9a.
  • the subassembly 7 has a plurality (four in this embodiment) of battery modules 20 and a base plate (flat plate member) 8 to which the battery modules 20 are fixed. Two subassemblies 7 are accommodated in the internal space S ⁇ b> 1 of the housing 10.
  • the base plate 8 is a thick plate that is thicker than the members that form the box-shaped component 2 and the lid component 6, and the thickness can be, for example, 10 mm or more.
  • the thickness of the base plate of this embodiment is 20 mm.
  • the material of the thin plate forming the box-shaped component 2 is, for example, a steel material such as SS400 or cast iron.
  • the battery module 20 is fixed to one main surface 8 a of the base plate 8.
  • the other main surface 8 b of the base plate 8 is fixed to the box-shaped component 2.
  • the side plates 4d and 4d of the box-shaped component 2 are provided with eight insertion holes 5 for inserting screws 9b.
  • the base plate 8 is formed with eight screw holes 8c in which screw grooves into which screws 9b can be screwed are formed.
  • the base plate 8 is fixed by screwing a screw 9b inserted into the insertion hole 5 from the outside of the side plate 4d in the box-shaped component 2 into a screw hole 8c formed in the other main surface 8b of the base plate 8. Is done.
  • the height of the base plate 8 (the length in the Z-axis direction) is formed to be higher than the side plates 4 d and 4 d of the box-shaped component 2. .
  • casing 10 can be accept
  • the base plate 8 in the subassembly 7 has one of a male screw part and a female screw part in which a screw groove extending in a spiral shape along the opening direction of the box-shaped component 2 is formed.
  • the bracket 3 is a rectangular parallelepiped member, and a plurality (two in the present embodiment) are provided along the direction (X-axis direction) in which the surface 8d facing the lid component 6 extends in the base plate 8.
  • the bracket 3 is formed of, for example, a steel material such as SS400 or cast iron, and is fixed to the main surface 8a of the base plate 8 by welding.
  • the bracket 3 and the base plate 8 may be fixed by screwing or the like.
  • the lid component 6 is fixed by screwing a screw 9 a inserted into the insertion hole 6 c from the outside of the lid plate 6 a in the lid component 6 into a screw hole 3 a formed in the bracket 3.
  • the battery module 20 fixed to the subassembly 7 will be described.
  • the battery module 20 includes an array 15 in which a plurality of battery cells 11 are held by a cell holder 21, and one side in the array direction (X-axis direction) of the array 15.
  • the arranged elastic member 31 see FIG. 6
  • a pair of brackets 41 and 41 arranged on both sides in the arrangement direction with respect to the array 15 and the elastic member 31, and a plurality of connecting the pair of brackets 41 and 41 to each other
  • a middle plate 61 (see FIG. 6) disposed between the array 15 and the elastic member 31.
  • a battery cell 11 shown in FIG. 5A is a battery in which an electrode assembly is accommodated in a rectangular box-like case, and is a nonaqueous electrolyte secondary battery such as a lithium ion secondary battery, for example.
  • a nonaqueous electrolyte secondary battery such as a lithium ion secondary battery, for example.
  • seven battery cells 11 are arranged.
  • the battery cells 11 are arranged in a state of being held by the cell holder 21.
  • Adjacent battery cells 11 are in close contact via a heat transfer plate (not shown).
  • the electrode terminals 13 of the adjacent battery cells 11 are electrically connected to each other by a bus bar 14, whereby the adjacent battery cells 11 are electrically connected in series.
  • the battery cell 11, the cell holder 21, the heat transfer plate, and the bus bar 14 constitute an array 15.
  • the cell holder 21 is made of resin. As shown in FIG. 5A and FIG. 5B, the cell holder 21 includes a frame body portion 22 and a partition portion 23.
  • the frame body portion 22 includes a bottom plate 24 and a pair of side plates 25 and 25 erected from both ends of the bottom plate 24. Each of both ends of the bottom plate 24 is provided with a protruding portion 24a protruding in the thickness direction of the bottom plate 24, and each of the protruding portions 24a is provided with an insertion hole 24b penetrating in the arrangement direction. Bolts 51 (see FIG. 4) are inserted through the insertion holes 24b.
  • the partition part 23 connects a pair of side plates 25 and 25 to each other.
  • a pair of terminal accommodating portions 26 and 26 are provided on the partition portion 23.
  • Each of the pair of terminal accommodating portions 26, 26 has a circular inner wall surrounding the electrode terminal 13.
  • a pair of square pillars 27, 27 are provided on the partition part 23.
  • Each of the pair of column portions 27, 27 is provided with an insertion hole 27a penetrating in the arrangement direction.
  • the diameter of the insertion hole 27a is, for example, the same as the diameter of the insertion hole 24b.
  • Bolts 51 (see FIG. 4) are inserted through the insertion holes 27a.
  • an accommodation space S ⁇ b> 2 is formed by the frame body portion 22 and the partition portion 23.
  • the battery cell 11 is held in the cell holder 21 by accommodating the battery cell 11 in the accommodation space S2.
  • a rectangular opening portion 28 is formed by the frame body portion 22 and the lower end surface of the partition portion 23. The opening 28 is provided for the arrangement of a heat transfer plate (not shown).
  • the elastic member 31 is formed in a flat plate shape by rubber, for example. As shown in FIG. 6, the elastic member 31 is disposed between the middle plate 61 and the bracket 41. The pair of brackets 41 sandwich the array body 15, the elastic member 31, and the middle plate 61 from both sides in the array direction, and fix the battery module 20 to the base plate 8 of the subassembly 7.
  • the bracket 41 is formed by bending a plate-like member made of a metal material.
  • the bracket 41 is formed with a sandwiching portion 42 and a fixing portion 43 with the bent portion 41a interposed therebetween.
  • the bracket 41 is formed with a rib 44 for increasing the strength.
  • the sandwiching portion 42 is a portion that sandwiches the array 15 via the elastic member 31 and the middle plate 61.
  • a plurality (four in this example) of insertion holes 42 a for inserting the bolts 51 are provided in the clamping portion 42.
  • the fixing portion 43 is a portion that is fixed to the base plate 8 of the subassembly 7, and is fixed to the base plate 8 by screws 55, for example.
  • the fixing portion 43 is provided with a plurality of (four in this example) insertion holes 43a through which the screws 55 are inserted.
  • the bolt 51 is made of, for example, a ferrous metal having a relatively high strength.
  • a plurality of bolts 51 (four in this example) are provided, and extend in the arrangement direction to connect the pair of brackets 41 and 41 to each other.
  • Each of the plurality of bolts 51 is inserted into four insertion holes 42 a formed in the pair of brackets 41, 41 and is inserted into the insertion hole 24 b or the insertion hole 27 a of the cell holder 21. And it is fastened by the nut 53 outside the one bracket 41. By this fastening, a restraining load is applied to the array body 15 and the elastic member 31.
  • FIG. 7 a bottomed cylindrical box-shaped component 2 as shown in FIG. 7, a lid component 6 joined so as to cover the opening 2 a of the box-shaped component 2, and a battery module 20 fixed to the base plate 8. And a subassembly 7 comprising: Then, two subassemblies 7 are inserted from the opening 2 a of the box-shaped component 2.
  • the screw 9b is inserted into the insertion hole 5 from the outside of the side plate 4d in the box-shaped component 2, and the screw 9b is screwed into the screw hole 8c formed in the other main surface 8b of the base plate 8.
  • the opening 2 a of the box-shaped component 2 is covered with the lid component 6.
  • the screw 9a is inserted into the insertion hole 6c from the outside of the cover plate 6a in the cover component 6, and the screw 9a is screwed into the screw hole 3a formed in the bracket 3 fixed to one main surface 8a of the base plate 8.
  • the subassembly 7 is fixed to the box-shaped part 2 by the process described above. Thereby, the subassembly 7 in which the battery module 20 is fixed in the internal space S1 of the housing 10 including the box-shaped component 2 and the lid component 6 fixed so as to cover the opening 2a of the box-shaped component 2 is formed. Be contained.
  • the bracket 3 for fixing the lid part 6 to the box-shaped part 2 is not provided in the box-shaped part 2 but is provided in the subassembly 7. For this reason, there is no inconvenience that the subassembly 7 cannot be accommodated because there is a bracket or the like around the opening 2 a of the box-shaped component 2.
  • the subassemblies 7 can be accommodated with a small interval (with almost no interval). For this reason, it is not necessary to increase the size of the housing 10.
  • the screw hole 3a and the screw 9a for fixing the subassembly 7 and the lid component 6 are screwed together along a direction (Z-axis direction) parallel to the opening direction, so that the screw hole 3a and the screw 9a are connected to the housing.
  • the body 10 does not jump out in the direction in which the physique of the body 10 increases (XY plane direction).
  • the lid component 6 that covers the opening 2a can be fixed without increasing the size of the housing 10.
  • the screw hole 3a into which the screw 9a is screwed is formed in the bracket 3 fixed to the main surface 8a to which the battery module 20 is fixed in the base plate 8.
  • the bracket 3 is a rectangular parallelepiped member, and a plurality of the brackets 3 are provided along the direction in which the surface 8d facing the lid component 6 in the base plate 8 extends. Thereby, the lid component 6 can be fixed to the subassembly 7 by adding the minimum necessary bracket 3.
  • the lid part 6 is also formed of a member having a thickness smaller than that of the base plate 8. Therefore, in the case where the lid plate 6a and the side plate 6b are formed by welding, it is possible to suppress an increase in welding time and to make it difficult to cause a difference in quality of the joint portion by welding.
  • FIG. 8 is a top view of the box-shaped component 2 and the lid component 6 constituting the housing 10 with the lid component 6 removed.
  • the subassembly 7 fixed to the side plate 4d has a configuration similar to that of the above embodiment.
  • the battery pack 201 according to the modification 1 has one feature in the configuration of a subassembly (unit part) 7A disposed between these subassemblies 7.
  • the subassembly 7A is fixed to the base plate 208 having a thickness larger than that of the base plate 8, the four battery modules 20 fixed to one main surface 208a of the base plate 208, and the other main surface 208b of the base plate 208.
  • the four battery modules 20 are provided.
  • the total thickness (two modules + base plate 208) of the subassembly 7A is 10 to 20 times the thickness of the base plate 8.
  • the front plate 4b and the rear plate 4c of the box-shaped component 2 and the side surfaces 208e and 208e of the base plate 208 are fixed by screws (not shown).
  • the bracket 3 described above is fixed to one main surface 208a and the other main surface 208b of the base plate 208 by welding.
  • cover component 6 is the same as that of the said embodiment, detailed description here is abbreviate
  • the bracket 3 for fixing the lid part 6 to the box-shaped part 2 is not provided in the box-shaped part 2 but is provided in the subassembly 7. For this reason, there is no inconvenience that the subassembly 7 cannot be accommodated because there is a bracket or the like around the opening 2 a of the box-shaped component 2. For this reason, it is not necessary to increase the size of the housing 10. Further, the screw hole 3a and the screw 9a for fixing the subassembly 7 and the lid component 6 are screwed together along a direction (Z-axis direction) parallel to the opening direction, so that the screw hole 3a and the screw 9a are connected to the housing. The body 10 does not jump out in the direction in which the physique of the body 10 increases (XY plane direction). As a result, the lid component 6 that covers the opening 2a can be fixed without increasing the size of the housing 10.
  • the bracket 3 is a rectangular parallelepiped member, and two brackets 3 are provided along the direction (X-axis direction) in which the surface 8 d facing the lid component 6 extends in the base plate 8.
  • the present invention is not limited to this.
  • the bracket 3 is a rectangular parallelepiped member, and three brackets 3 are provided along the direction (X-axis direction) in which the surface 8 d facing the lid component 6 extends on the base plate 8. 3 or more may be provided.
  • the bracket 103 may extend in the direction (X-axis direction) in which the surface 8d of the base plate 8 facing the lid component 6 extends.
  • the number of screw holes (female screw portions) 103a for screwing the screws 9a for fixing the lid component 6 can be freely set.
  • the bracket 3 is disposed at a position overlapping the battery module 20 when viewed from the upper surface (upward in the Z-axis direction) as shown in FIGS. As shown in FIGS. 10A and 10B, the battery module 20 may be disposed at a position that does not overlap. With this configuration, the size of the housing 10 in the height direction (Z-axis direction) can be reduced.
  • the bracket 3 By making the bracket 3 a rectangular parallelepiped member, the bracket 3 can be flexibly arranged in the gap between the battery modules 20 or in the gap between the box-shaped component 2 and the battery module 20.
  • cover component 6 demonstrated and gave the example which was extrapolated by the side plates 4d and 4d, the front plate 4b, and the rear plate 4c in the box-shaped component 2, this invention Is not limited to this.
  • the side plate 306b in the lid component 306 may have a tapered portion 307 whose thickness is reduced at a part of the end portion.
  • the side plate 304d and the like in the box-shaped component 2 may have a tapered portion 305 whose thickness is reduced at a part of the end portion. And it can prevent that a size becomes large in the direction where the physique of the housing
  • the side plate 406b in the lid part 406 and the side plate 404d in the box-like part 2 may be joined via a seal member 407. Even in this case, it is possible to prevent the size from increasing in the direction in which the physique of the housing 10 increases while suppressing water from entering from the joint.
  • the cover plate 6a of the cover component 6 has been described with reference to an example in which the cover plate 6 is uniformly flat.
  • the cover plate 6 may be formed in a concavo-convex shape such as providing a convex portion 506e in the axial direction).
  • the height of the internal space of the housing 10 can be locally increased as necessary.
  • the lid component 606 can be fixed to the subassembly 7 by screwing a nut (female screw portion) or the like to the screw.
  • the box-shaped component 2 serving as the main component is formed in a bottomed cylindrical shape.
  • the main component has openings at both ends in one direction (Z-axis direction).
  • the cylindrical member which has this may be sufficient. That is, the housing may be formed by a main body part and two lid parts covering the two openings. Even in this case, the above-described method for fixing the lid part is applied. be able to.
  • the screw hole 3a for screwing the screw 9a is formed in the bracket 3
  • the screw hole 603a is formed on the surface 8d intersecting the main surface 8a of the base plate 8. It may be formed.
  • the lid component 6 can be fixed to the subassembly 7 without adding a member such as the bracket 3 described above.
  • the bracket 3 has been described with reference to an example in which the bracket 3 is joined to the base plate 8 by welding. However, as illustrated in FIGS. 13A and 13B, a screw is used. 707 and 807 may be fixed.
  • the bracket 3 is described as an example made of a rectangular parallelepiped member, but the present invention is not limited to this.
  • the shape viewed from the side on which the lid component 6 is fixed may be a T-shaped member.
  • a member having a fixing portion 704 fixed to the base plate 8 by the screw 707 and a protruding portion 705 protruding from the fixing portion 704 in the direction opposite to the base plate 8 may be used.
  • a screw hole 703 a for fixing the lid part 6 is formed in the protruding portion 705.
  • FIG. 13 (A) the shape viewed from the side on which the lid component 6 is fixed may be a T-shaped member.
  • a member having a fixing portion 704 fixed to the base plate 8 by the screw 707 and a protruding portion 705 protruding from the fixing portion 704 in the direction opposite to the base plate 8 may be used.
  • a screw hole 703 a for fixing the lid part 6 is formed in the protruding portion 705.
  • the shape of the base plate 8 viewed from the direction (X-axis direction) in which the surface 8d (see FIG. 1) facing the lid component 6 extends is L-shaped. It may be a member. In other words, it may be a member having a fixing portion 804 fixed to the base plate 8 by the screw 807 and a protruding portion 805 protruding from the fixing portion 804 in the direction opposite to the base plate 8. A screw hole 803 a for fixing the lid part 6 is formed in the protruding portion 805.
  • the sub-assemblies 7 and 7 to which the battery module 20 is fixed have been described with reference to the examples where the sub-assemblies 7 and 7 are fixed to the side plates 4d and 4d.
  • the box-shaped component 2 may be fixed to the front plate 4b and the rear plate 4c.

Abstract

L'invention concerne un bloc d'éléments d'accumulateur (1) dans lequel des accumulateurs (20), dont chacun est configuré par une pluralité d'éléments (11), sont logés dans un boîtier (10). Le bloc d'éléments d'accumulateur est pourvu : d'un élément en forme de boîte cylindrique (2) ayant une ouverture (2a) ; d'un élément de couvercle (6) pour recouvrir l'ouverture de l'élément en forme de boîte ; d'un sous-ensemble (7) qui est un élément dans lequel chacun des accumulateurs est fixé à au moins une surface principale (8a) d'une plaque de base parmi plusieurs plaques de base (8), ledit sous-ensemble étant logé dans un boîtier formé par l'élément en forme de boîte et l'élément de couvercle, et étant fixé à l'élément en forme de boîte. Chacune des plaques de base comporte des trous de vis (3a) dans lesquels des rainures de filetage s'étendant en spirale dans la direction de l'ouverture de l'élément en forme de boîte sont formées, respectivement, et l'élément de couvercle est fixé aux plaques de base par vissage à l'aide de vis (9a).
PCT/JP2016/075982 2015-10-20 2016-09-05 Bloc d'éléments d'accumulateur WO2017068876A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015206470A JP6565585B2 (ja) 2015-10-20 2015-10-20 電池パック
JP2015-206470 2015-10-20

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WO2017068876A1 true WO2017068876A1 (fr) 2017-04-27

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WO (1) WO2017068876A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019065033A1 (fr) * 2017-09-29 2019-04-04 三洋電機株式会社 Dispositif d'alimentation électrique

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